My browser WASM’t prepared for this. Using DuckDB, Apache Arrow and Web Workers in real life

Motif Analytics developed a powerful analytics tool that runs fully in-browser using DuckDB WASM, Apache Arrow, and Web Workers. They shared their experiences and lessons learned, highlighting both the benefits and challenges of these technologies. DuckDB WASM offers nearly native performance for some tasks but is generally slower and has limitations due to browser constraints. Apache Arrow facilitates efficient data interchange between Web Workers and DuckDB, although schema reconciliation can be problematic. Despite some drawbacks and bugs, these technologies provide a compelling solution for web-based data processing.